jorge,

Yep, the more-powder-closer-together and less-powder-farther is about the only real rule. Other than that you never know until you shoot 'em.

There are a few other generalizations that often, or sometimes, work. That's about as definite as it gets. One is that heavier and longer-barreled rifles can be more tolerant. But one of the most tolerant doubles I've fooled with is my German 9.3x74R, which only weighs 8 pounds and has 65cm (25.6") barrels.

Probably the Hornady ammo is listed at 28" because many older rifles have barrels that long. Would guess there are more old .450's than new ones.



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John Steinbeck